The spinal cord is a long bundle of nerves and cells that extends from the lower portion of the brain to the lower back. Spinal cord functions include carrying signals between the brain and the rest ...

A dermatome is an area of skin supplied by a single spinal nerve. There are 31 pairs of spinal nerves, forming nerve roots that branch from your spinal cord, but only 30 dermatomes. Your spinal nerves ...

The following text summarizes information provided in the video. Health care visits related to symptoms or concerns regarding the neck are common. Although musculoskeletal neck pain is usually ...

A herniated disc can pinch a nerve, which causes pain, numbness, or weakness in your lower back and legs. Diagnosing a ...